Sparking igniter for gasolene-engines.



PATENTED APR. 3, 1906.

LG. MOLAGHLAN. SPARKING IGNITER FOR GASOLENE ENGINES.

APPLICATION FILED OUT. 31, 1904.

' nut, the partsbeing arranged and constructed in form and 'L onLAN, county of York, in the Province of Ontario,

' partsinvolved View similar to spindle djwhioh derives movement from the j ust'ably held in' setscrevvsc-L '9 may be-adjusted longitudinal] UNITED STATES PATENT. OFFICE;

JOHN CAMPBELL McLACHLAN. 0F TORONTO, CANADA.

SPARKING IGNITEFI F'on eAsoLsne-znemzs.

' No.816,990. Specification of Letters Patent. i

. Application filed October 81, 1904. flerial No. 230.871-

0 and on the arm D. v The'arm' D is located loosely on the end of thesteln .of the mov- To allwltom it may concern: I W Be it known that I, JOHN CAMPBELL Meof thecity of Toronto, in the b a a set-screw Canada, have invented certain newand usetrode' espiral spri ful Improvements in S arkingIgniters for Gasolene-Engines, of W oh the following is a specification. My invention relates to improvements in electric igniters for gasoleneengines and the object of the invention is to produce an igniter which may 'be readil adjusted so as to explode at any point oft e stroke and at the same time make provision to take u the wear and to prevent the breaking i the mechanism of the movable electrode in case of a back stroke or-explosion'; audit consists, essentially,

of the stem E.

H is a spiral spring encircling the stemand secured atone end to the opposite end to the'stop-bloc F butwill not move 7 in theopposite direction; but as this is the ord nary construction of a of a sleeve journaled on the .pin, describe'the construction thereof; of the cranlewheel and through which'the J is a 'sleeve throu h sparker operating bar extends, a supp ba'rC extends. Thee mental sleeve-through which the sparkenopan irpwardly-extehdin crating bar extends resiliently supported on a the upper side of the "'s eeve within. the guidepinconnected to the plate through which the bracket forms one half of the bearing for the movable electrode extends, and a lever 'jourpin K, the upper half of the bearing being naled on said pin and pivotall connected to formed by the bearing -'block 76, suitably the sleeve and adjustably he d to a slotted formed and heldin a gulde-bracket J'''.': The arm by a pin extending from the lever block has an u wardly-extending stem 70, through the slot and provided with a thumbwhich projects t on h .a "holein end of thebracket an is encircled b v a sp ral spring is between the upper on of the bracket and the block is.

' is a lever pivote'd'o'n-the pin K, and Z is. a collar secured on the outerv end of the pin-K. V i

is an' 'armsecured on a eeve J is -provided with in detail as hereinafter plained. Q

"Figure 1 is a more "particularly expcrspective view showing the in my invention. Fig. 2 is a section through the supplemental sleeve-pin and adjustin -lever. Fig. .3 is'a view of the I supplementa' sleeve, showing the adjusting ever. and means from the inside. Fig. 4 is a v 3 with parts broken Figs. 5 and ,6

pinI, projecting out from the he outer end of v-ided with a slot m.

l is a pinwlrich extends inwardly from the lever L through I the slot and is provided with a thumb-nutl, whereby thel .be clamped into any position to which it ma "be adjusted, limited, of course, bythe length of the slot m.

Themovementof the sparker-bar C is inthe directionindicated by arrow to operate ont e arm D,an dco equently-produce the requiredlmove'meiit oft e electrode. a It is of away and parts in section. are detail perspectiveviews.

In the drawings like letters of rei'erenceim clicate corresponding parts in each figure. A is the crank-Wheel, which is secured on a engine in any suitable-manner.

a isa crank-pin. I B is a sleeve, being preferably rectangular urnaled on the crank-pin aby means of thehollew boss. 6, formed underneath the sleeve. I v

"(1' is a 's'parker-operatin bar, which isad-j the sleeve by means-of the I-tjwill thus beseen'that the her so' 'as' to ooked end" endc'lso as to time the sparkaccurately to ifected means of the lever L, hereinbefore described, which itwill besee'h may be swung so astojmove the sleeve longitudinally on the bar (Land consequentlyraiser take up the wear on the'operating sfastened atone endf-to a'screwg on the mova le arm-D and at theop'- posite end ,to the collargfl securedon the end movable tuming'electrode I need not further guide-bracket J, andthe upper inner'end ofthe;

course necessary to vary theheight of theorlowerthe free Patented April 3,1306.

It will thus be seen thatthearm-Dis free to move in the direction indicated 'b' arrow,

which the-sparkerthe arm is enlarged-and proi any-'desiredpoint of-therstroke,and this is efscribed, held. in'anyposition to whichit may 7 be adjusted by mQflJ SOf which will hold the lever stationary; '9

'ing at the'inner' endf'the armlxgwou =-Shouldfthe engineitake aback troke, the tendency of the ends, itis located at start v ld b to b'r'ealt the arm"Dor" its connection ,.to;;the stem of the electrode, andthis is avoided beinglfesiliently held. together bgthe. spring I p k to move away from the leeve J,.and consequently the k;-w ch'allowsthe upper bloc bar to fall and theend c to pass underneath 1. Inauelectric gniter,

with the movable' electrode having the aetus ating-arin adeptedto' havefree movementinarm, 1;

connected to the'sparkerabar, asu

sleeve. throughwhicli the sparker- I provided with a o'ne;w'ay, of-the 'sparkerfbar provided with a contacting endzadapted'to engage with the he. crank-wheellsuitab y driven and plemental ar extends 'din bracket, a bearing'- locklocjated in t e gui irlg-bracket and provided withamupwardlyextending stem proje cting through the to of the same, a spring between the bearing-b ock and the upper end of the bracket, a in extending between the bearing-block'sinrfthe sleeve and means .for supporting the pin as and for the purpose specified. Y v I 2.--Inan electric igniter, the combination with the movable electrode having the actuating-arm adapted to have free movement in one way, of the sparker-bar provided with a contacting end adapted to engage with the arm, the crank-wheel suitably driven and connected to the sparker-bar, a supplemental'sleeve through which the sparker-bar extends provided with a guiding-bracket, a'

bearing-block located in the gu1dingbracket and provided with an upwardlyextending stem projecting through the to of the same, a spring between the bearinglock and the upper end of the bracket, a in extending between the bearing-block and the sleeve, a pin projecting outwardly from the cylinder end, a slotted arm secured on the pin, a lever connected to the stud or pin extendingbetween having an arm ada the bearing-block and sleeve and pivoted on the aforesaid pin which projects from the cylinder and a pin on the lever extending t ough the slot in the arm and a thumb-nut secured as and for the urpose specified.

, Thecomhin'ation with the sparker-barand. means for imparting a longitudinal movementtothe same and the electrode having an arm adapted to havefree movement in ol'i the end of the last-mentioned pin onegwaly, of thesupplemental sleeve through bl'yg 1 which thesparkerar extends havin an up"- i the twohalves of the bearing of' thepin mildly-extending guiding-bracket,a earingv block located within the guiding-bracket, a

pin extending between thebearing-block and the bearing on' the sleeve and means for adjusti "g suchpin as and for-the purpose specified q "4." The combination with the sparker-bar f and means-for lmparting a longitudinal 1.5" 'movement to the same and the electrode hav-' ingan-arm' adapted to have free movement a in one way, of the supplemental sleeve through which the sparker-bar extends having an up- ,wardly-extending guiding-bracket, a

block-located within the guiding-bracket, af

earing pin extending between the bearing-block and the bearing on the sleeve, a lever for supporting the pin, apin suitably supported on which the lever is iulcrumed and means for holding the lever in any position to which it may be swung as and for the purpose specified. 1 i

' 5. The combination with the sparker-bar and Ineans for imparting a longitudinal movement to the same and the electrode ted to have free movement in one way, 0 the supplemental sleeve through which the sparker-barextends havin anupwardly-extending guiding-bracket, a hearing-block located Within the guidingbracket, :1 pin extending between. the bearing-block and thebearing on the sleeve, a lever for supporting the pin, a pin suitably supported on which the lever is fulcrumed and an arm secured on the main supportingpin and provided with a slotted end and a pin extending from the lever through the slotted end and a thumb-nut on the pin as and for thepurpose specified.

. JOHN CAMPBELL McLACHLAN.

Witnesses:

B. BOYD, I

M; McLARn v. 

